Crab or windlass.



R. E. NOBLE & L. E. MITGHELL.

GRAB 0R WINDLASS.

APPLICATION FILED APB. 17, 1907.

907,635, Patented Dec.22,19o8.

2 SHEETS-SHEET 1.

R. E. NOBLE & L. E. MITCHELL.

GRAB 0R WINDLASS.

APPLIGATION FILED APB.. 17, 1907.

W'wses:

UNITED STATES PATENT OFFICE.

RALPH E. NOBLE ANI) LOUIS E. MITCHELL, OF CHICAGO, ILLINOIS, ASSIGNORS TO MORGAN- GARDNER ELECTRIC COMPANY, OF CHICAGO, ILLINOIS.

GRAB OR WINDLASS.

Specification of Letters Patent.

Patented Dec. 22, 1908.

Application filed April 17, 1907. Serial No. 368,784.

To all w72 om it may concern:

Be it known that we, RALPH E. NOBLE and Louis E. MITCHELL, citizens of the United States, and residents of Chicago, county of Cook, and State of Illinois, have invented certain new and rseful Improvements in Crabs or -Windlasses, of which the following is a specification.

This invention relates more )articularly to an improved form of windlass .which is adapted for many purposes, but which is particularly for use in connection with a mining locomotive, and it also includes the combination of such locomotive with a crab or windlass adapted for drawing up cars.

This invention also relates to a particularl form of drum for a crab or windlass, and also to variors details in the construction of the operative mechanism.

In coal mines equipped with electric haulage systems, it is frequently desirable to haul cars of coal from side-rooms which are provided with tracks but not provided with overhead conductors. Heretofore it has been proposed to use gathering locomotives 'having flexible conductors which may be attached outside of the rooms and which may be wound up onreels on the locomotives as the latter go in and out of the side-rooms. Such apparatus has not proven entirely sat* isfactory, and it is one object of the present invention to provide a locomotive with a suitable crab, the crab being provided with a line 0r cable which will reach into the room and can be connected with the car so that the car may be pulled out by winding up the cable on the crab.

le have illrstrated our invention in the accompanying drawings in which:

l igrre 1 represents a side-view of an electric locomotive provided with our improved crab; I ig. 2 is a view partly in section and artly in elevation, showing our improved torni of crab; l ig. 3 is a detail view, showing the method of locking the crab-motor l ody with the hase; 'l' ig. 4 is a detail plan-view, showing'the driving gear and the clutch or connection 1between the main driving gear and the winding drum; and i 1g. 5 is a topg plan view, showing the hraic lor the winding drt m. Y

As shown in Iig. 1, 6 represents an electric locomotive of any ordinary or preferred form upon which is mounted at' one end a crab or windlass 7 having a line or cable 8 for connection with the car or other device which is to be moved. The crab 7 is shown in detail in the succeeding gures and is provided with a base member 9 which is rigidly secured to the locomotive frame in any desired manner. This hase is provided with an upwardly-extending cylindrical support 10 which 'furnishes a b'earinLT for the Winding drum 11. This winding drum forms one of the important features of our invention, and differs from the ordinary winding drum in having a flanged or upwardly-(lished head 12, as shown in 'r ig. 2. This flanged or'dished head is made in this manner in order to cause the line or cable 8 to wind evenly on the hub of the drum instead of lling up in a large spiral lying against the read, as frepuently occurs 1n ordinary drums having lat heads, or heads which flare outwardly, or away from a plane passing at right angles through the hub between the'heads, thereby making a wider opening at the outer edge than at the hub.

The line 8 may be secured to the hub of the winding drum in any desired manner, but we have provided a lug 13 for this purpose. As the drum is turned, the line will ride over the rounded edge 14 of the flanged head, which will thereby give the line an upward inclination so that it will start to wind upwardly in a regular coil on the hub of the drum. Then one layer has been wound on the hub, the line will ordinarily start to wind down without any tendency to gathering in a large spiral against the up er head, and 1 therefore the upper head is s iown without any flange or bead; but, of course, it may be provided with such a .flange to correspond with the lower head., as indicated lin dotted lines. As the. next layer is being formed with the line moving down, the natural tendency is for the coil lto continue until the bottom head is reached.` Then, a`s above indicated, the llange or bead 14 will again cause the line to start properly to make the nelxt coil or layer instead ol' gathering around adjacent to the head. This improved winding drum, as applied to a locomotive according to ourinvcntion, is adapted to be driven by an electric motor 15 which is provided with a body 16 having a downwardlypro jecting cylindrical bearing or support 1,7

closely fitting in the upwardly-extendingV support 10 ot' the base 9. In order to lock the motor body in position, we have proile vided a locking device shown in Fig. 3. This locking device com rises a bolt 18 Which fits -,in a hole 19 throug the bottom of the su port 1-0, and engages with a hole 20 in t e ower end of the cylinder 17. This boltl 18 is operated by means of a-screw 21 passing through a threaded hole 22 in the' outer rim of the base 9 and engaging at its inner end with a lug or projection 23 on the end of the bolt 18. By means of'this arrangement, the bolt 18 is securely held in position and a"t the same time can be readily operated when all of the parts are assembled.l

The motor 15 is covered by means of acap fitting over the ktop 'of the body 16.. lThe motor is preferably supplied with electricity f from the same current or system which suppliesthe locomotive ;4 but as the are not shown in detail ,in thel drawings.

The armature 24 of the motor 15 is provided with'a shaft 425 having a bearing in the..

lower end of the cylinder 17. A pinion 26 is secured to the lower end of this shaft, and

this pinion engages with a gear 27 which is shaft 2,8 carries a`- pinion 32 which engages -With ail internal gear 33 which rests on a bearing ring 34 on the frame 9.

The internal gear. 33 fits closely within a downwardly-projecting circular flange 35 on the windin drum. The winding drum is vdriven by t e internal gear by means of a awl or clutch device which is shown best in ig. 4. The outer periphery of the gear 33 1s provided with one or more notches 36. A

, pawl 37, pivoted at 38 between a bracket or ets 43 on said head.

support 39 and the head 12, is adapted to engage With said. notches 36 in the gear 33. This pawl is providedwith an outwardlyextending arm 40 which is pivoted at 41 to a ring L12-whicl extends entirely around the head 12 and is supported by means of brack- It will be readily seen that when the ring 42 is moved in one direction, the pawl 37 will be thrown into engag-A ing position, as shown in Fig. 4; and when the ring is moved in the opposite direction, the pawi Will be thrown out of engaging ositlon, a stop-pin 44 being provided t'o imit the movement in this direction. In order to hold' the pawl in adjusted position, a spring toggle is provided, which consists of a l1nk 45 having one end pivoted to the heel of the pawl 37 and having theother end engaging with a V-shaped slot in the end of the plunger which Works in a socket 47 and is normally pressed outward by means of a spring 48. The action ol this toggle is such. t at when the pawl is turned in t e position shown, it will tend to hold 'the saule inv this vhold it in suc position.

articulan' ormv of the motor and the wiring t erefor do not constitute a part of this invention, they l position; and when the pawl is turned -to a non-engaging o sition, the toggle Will tend to By means -of this clutch or pawl arrangement, the winding drum may be released from the driving mechanism so that it can be readily turned, as when it is desired to pay out the cable 8.

The upper head 11 of the winding drum is provided with a circular flange 49 which is adapted to' be engaged by a brake-band 50, when, for any reason, it is desired to stop the movement of the winding drum or place a tension thereon. As shownin Fig. 5, a bearing 51 is bolted to the motor body 16. A lug 52A en one end of the brake-band 50 is pivment. is such that when the handle 58 is u moved in either direction, the eccentric 56 will bear 'against "the lug 52 and thereby tighten the brake-band 50 against the flange 49.

The advantages of our invention will be readily understood by an one familiar with the art, and We have erein particularly pointed out and described a preferred form of our invention;but it will be apparent that this form may be varied without departing from the scope of our invention, and therefore We do not wish to limit ourselves to this' particular form; and it will also be apparent that certain features of our invention may be readily adaptedfor other uses or purposes than those herein described.

What we claim as our invention and desire to secure by Letters Patent, is

1. The combination of a base having a central vertical cylindrical support, a winding drum mounted on said support, a motor mounted in saidv support and having its armature shaft extending through said support, and gears connecting between said armature shaft and said winding drum for driving said drum. 2. The combinationl witha base having a' vertical cylindrical support, a winding drum mounted on said support, a motor frame having a projection'engaging with said support, an armature shaft extending through said. projection,`a train of gears connectingwith said armature shaft, and means for operatively connecting the last gear of said trainwith said winding drum.

3. The combination with a winding drum, and amotor concentrically mounted on a single support of a train of gears connecting with the armature shaft of said motor, a

f rlutchmeclianism for engaging the last gear 4. The combination with awinding drum and a motor concentn'cally mounted on a common frame, of a flange on said Windingdrum, an internal ,gear loosely fitting within said flange, means for driving said gear from said motor, and means for locking said gf@V and tting Within said flange, a pawl on said;

ange adapted to engage with said notches,

and means for manually throwing saidy pawl into and out ofengagernentwith said notches.

6. The combination with an electric motor and a se arate winding drum .concentrically mountedpv on a vertical su port, of abrakeband connectedv with saidp motor body and adapted to engage with said winding drum,

and means for throwing said brake into and out of enganment with said drum.

7. A wln g drum havin the inner faces of the head arranged at su stantially right angles to the hub portion, mwardly projectingrims or beads at the outer eripheries of said heads, whereby the space etween said rims will be less than the length'of the windving portionfof'lthe hub, said rims acting as guides/t control the movement of the cable. 8. A vertical winding drum having its bottom head provided with an upwardly (proj ecting outer edge, said projection eXte ing above fthe bottom Winding portion of the hub of said drum and adapted to guide the rope upwardl after the coils have reached f the bottom o said hub portion. l

9. A Winding drum having its heads dished outwardly `adjacent to the Winding portion of the hub so that the space `between the rims of said heads is less than the space adjacent to the hub. i

- RA PH E. NOBLE.

LO /IS E. MITCHELL. l/Vitnesses: 4

A. W. FENSTEMA'KER,

B. SINGER. 

